HowTo

• Fixing the touch offset for EU panels:
  Add lcd_dev fffb 0002 0000 0020 to Program.s (at the top of the Nextion Editor)
  Important: This needs to go above page 0
• Swipe detection by kernel_k
• Automatically dimming the display by Andre Klärner. See HMI here.
  • YouTube video with a walkthrough of how to use this to turn off the screen
• TFT uploads with MQTT (thanks to ESPHome Discord) *

  # Update Display switch
  switch:  
    - platform: template
      name: Update TFT display
      id: tft_update
      turn_on_action:
        - delay: 16ms
        - lambda: 'id(disp1).upload_tft();'
        - switch.turn_off: tft_update

The crucial piece here is the 16ms delay that forces asynchronous action.